[Java] 详解SpringBoot2 使用Spring Session集群

<properties>
  <project.build.sourceencoding>utf-8</project.build.sourceencoding>
  <project.reporting.outputencoding>utf-8</project.reporting.outputencoding>
  <java.version>1.8</java.version>
 </properties>
 <dependencies>
  <dependency>
   <groupid>org.springframework.boot</groupid>
   <artifactid>spring-boot-starter-data-redis</artifactid>
  </dependency>
  <dependency>
   <groupid>org.springframework.session</groupid>
   <artifactid>spring-session-data-redis</artifactid>
  </dependency>
  <dependency>
   <groupid>org.springframework.boot</groupid>
   <artifactid>spring-boot-starter-web</artifactid>
  </dependency>
 </dependencies>

server.port=8080
spring.redis.host=localhost
spring.redis.port=6379
# spring session使用存储类型
spring.session.store-type=redis

package com.shyroke;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.cache.annotation.enablecaching;
import org.springframework.session.data.redis.config.annotation.web.http.enableredishttpsession;
@enablecaching
@enableredishttpsession
@springbootapplication
public class springbootsessionapplication {
 public static void main(string[] args) {
  springapplication.run(springbootsessionapplication.class, args);
 }
}

package com.shyroke.controller;
import java.util.hashmap;
import java.util.map;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import org.springframework.http.httprequest;
import org.springframework.stereotype.controller;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.responsebody;
@controller
@requestmapping(value = "/")
public class indexcontroller {
 @responsebody
 @requestmapping(value = "/session")
 public map<string, object> getsession(httpservletrequest request) {
  request.getsession().setattribute("username", "admin");
  map<string, object> map = new hashmap<string, object>();
  map.put("sessionid", request.getsession().getid());
  return map;
 }
 @responsebody
 @requestmapping(value = "/get")
 public string get(httpservletrequest request) {
  string username = (string) request.getsession().getattribute("username");
  return username;
 }
}